我正在使用jQuery的扩展“contains”，如下所示:$.extend($.expr[':'],{containsExact:function(a,i,m){return$.trim(a.innerHTML.toLowerCase())===m[3].toLowerCase();},containsExactCase:function(a,i,m){return$.trim(a.innerHTML)===m[3];},containsRegex:function(a,i,m){varregreg=/^\/((?:\\\/|[^\/])+)\/([mig]{0,3})$/,reg=